can

The roots of Can can be traced back to Irmin Schmidt (keyboards) and a trip that he made to New York City in 1968. While Schmidt initially spent his time with avant-garde or minimilaist musicians such as Steve Reich, and Terry Riley, his eventual meeting with Andy Warhol and then The Velvet Underground had a big influence.
Can were really the first rock band to be known later as "krautrock",  their psychedelic sound went beyond mainstream influences and took in much more of an experimental approach. They had a strong influence to the future of avant-garde, experimental, underground, ambient, punk, post-punk, new wave and electronic music. The young Johnny Rotten was to make Can's 'Tago Mago' one of his most played back in 1977 when talking about his favoured music. That influence could be heard more easily in his later band PIL. Tago Mago has been re-released this month.
Here's the track 'Halleluhwah' from Tago Mago (originally released 1971) still sounding fresh today.